Wagon-jack



T. SURTEES.

(No Model.)

WAGON JACK.

No. 394,311. Patented'Dem 11, 1888.

622% named @Hibou/ms v l 9] UNITED STATES PATENT OFFICE.

THOMAS SRTEES, OF MIDDLEPORT, OHIO.

WAGON-JAC K.

SPECIFICATION forming part of Letters Patent No. 394,311, dated December 11, 1888.

Application filed August 31, 1888. Serial No. 284,278. (No model.)

To all whom it may concern.-

le it known that I, THOMAS SURTEES, a citizen of the United States, residing at Middleport, in the county of Meigs and State of Ohio, have invented a new and useful Improvement in \Vagon-.Iaeks, ot' which the following is a specification.

My invention relates to improvements in wagon-jacks; and it consists in certain novel featu res hereinafter described and claimed.

In the accompanying' drawings, Figure l is a perspective view of my improved jack. Fig. 2 is a central vertical section. Fig. 3 is a similar view taken at right angles to Fig. 2.

Referring to the drawings by letter, A designates the casing of my improved wagonjaek, and B designates the lifting-bar, mounted in the easin and proj ecting tlxrough a slot, (l, in the upper end thereof'. lVithin the casing the lifting-bar is enlarged and provided with a longitudinal slot, I), as shown.

E designates the driving-shaft journaled in the sides of the casing and extending through the longitudinal slot of the lifting-bar. One end of this shaft extends beyond the sides of the casing and is provided with a crank-handle, F, as shown. lVithin the easing, near one end, the shaft E is provided with a pinion, G, whieh meshes with a gear-wheel, H, mounted on a transverse shaft, I, journaled in the sides of the casing below the shaft E, and extendin through the slot. of the liftingbar, as shown. This shaft I is further provided with a pinion, J', which meshes with the gear-teeth K, formed on one of the walls of the longitudinal slot I) of the lifting-bar, as clearly shown.

L designates a pawl pivoted at it-s lower end to the bottom of the easing, and having its upper end engaging the gear-wheel II and adapted to lock the same against' movement. This pawl L is controlled by an arm, M, pivoted thereto and extending outward through a slot, N, in the side of the casing.

In operation the upper end of the liftingbar is placed under the axle of the wagon and the crank-handle F then rotated, so that motion will be imparted to the shaft. E and the pinion G, and communicated by the same and the gear-wheel Il and shaft I to the pinion J. The pinion .I meshes with the rackteeth K on the lifting-bar and lifts the saine, causing the lifting-bar to rise through the casing, thereby raising the axle. The pawl L automatically yields to the upward motion of the teeth of the gear-wheel II, so that the lifting-bar can be steadily raised, but slips into the spaces between the adjacent teeth in the event of the gear-wheel making any backward movement. When it is desired to lower the lifting-bar, the crank-handle is released and the arm )I is pushed inward, thereby releasing the pawl L from engagement with the gear-wheel Il, when the lifting-bar will descend ot' its own weight.

My device is very simple and efficient, and as all of the working parts are inclosed by the easing the liability of damage thereto is reduced to a minimum. lVhile I have described my device as intended for use as a wagon-jack, it is equally as well adapted for lift-ing all heavy articles.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

l. The combination of the easing, the longitudinally-slotted lifting-bar mounted therein and provided with rack-teeth on one side of the slot, the transverse shaft journaled in the casing and having the pinion meshing with the rack-teeth of the lifting-bar, and mechanism for rotating said shaft, as set forth.

2. The combination of the casing, the lifting-bar mounted therein, the transverse shaft I, journaled in the sides of the casing and havin g a pinion geared to the lifting-bar, the wheel Il on said shaft, mechanism for rot-ating said shaft, the pawl pivoted atits lower end to the easing and having its upper end engaging the wheel Il, and the arm M, pivoted to pawl and projecting through the outer side of the casing, as set forth.

3. The herein-described jack, comprising the easing, the lifting-bar mounted therein and having the rack-teeth K, the drivingshaft journaled in the sides of the easing and provided with the crank-handle F, the

pinion G on the driving-shaft, the shaft I, j ouinaled in jBhe sides of the casing below the driving-Shaft, the Wheel H on the said Shaft I, meshing Wit-h the Wheel G, the pinion J on Said shaft, meshing with the raek-teeth K, and the pmvl Ii, pivoted in the easing and engaging' the Wheel II, :LS Specified.

In testimony that I claim the foregoing' as my own I have hereto affixed my signature in presence of two Witnesses.

THOMAS SURTEES.

Vitnesses:

TILLIAM DAWSON, CHRISTIAN KUNTZ. 

